CN108561556A - The method and torsion bar end sealing structure for preventing galvanic corrosion by sealing - Google Patents
The method and torsion bar end sealing structure for preventing galvanic corrosion by sealing Download PDFInfo
- Publication number
- CN108561556A CN108561556A CN201810799674.0A CN201810799674A CN108561556A CN 108561556 A CN108561556 A CN 108561556A CN 201810799674 A CN201810799674 A CN 201810799674A CN 108561556 A CN108561556 A CN 108561556A
- Authority
- CN
- China
- Prior art keywords
- torsion bar
- face
- circle
- bear
- primary seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 67
- 230000007797 corrosion Effects 0.000 title claims abstract description 58
- 238000005260 corrosion Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003792 electrolyte Substances 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 28
- 239000000565 sealant Substances 0.000 claims description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 26
- 230000007246 mechanism Effects 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 7
- 229910002804 graphite Inorganic materials 0.000 description 24
- 239000010439 graphite Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000000463 material Substances 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910000881 Cu alloy Inorganic materials 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 6
- 240000002853 Nelumbo nucifera Species 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 201000008482 osteoarthritis Diseases 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 241000271460 Crotalus cerastes Species 0.000 description 3
- 238000013475 authorization Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- -1 greasy dirt Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of method preventing galvanic corrosion by sealing and torsion bar end sealing structures, wherein being the setting primary seal circle between the torsion bar end face and torsion bar bear end face of torsion bar by sealing the method to prevent galvanic corrosion；When assembling, first primary seal snare is connected on the torsion bar end face of torsion bar, torsion bar end is inserted into torsion bar bear again, during insertion, primary seal circle compression is fitted on the torsion bar end face of torsion bar using the end face of torsion bar bear, so that forming the binding face of a sealing on torsion bar bear end face, outer electrolyte is prevented to enter inside torsion bar bear, to prevent the generation of galvanic corrosion.The present invention can prevent torsion bar end from occurring corrosion phenomena in use, reduce the scrappage of torsion bar mechanism for preventing side rolling of train carriage, reduce the cost of overhaul and can get around the restriction of foreign technology, and market is overhauled in autonomous grasp.
Description
Technical field
The present invention relates to a kind of method of preventing galvanic corrosion and preventing galvanic corrosion structure, more particularly to it is a kind of by seal come
Prevent the method and torsion bar end sealing structure of galvanic corrosion.
Background technology
Rail vehicle high speed by curve and track switch or it is static be parked in setting superelevated curve on when, sidewinder increase it is bright
It is aobvious, side wheel unloading, encounter it is tyrannical aweather when, or even there is unstability situation of toppling, safety reduces.It needs to increase vehicle
Rigidity is sidewindered to limit its angle of roll, but cannot influence vehicle drifts along, sideway, shakes the head, stretches and put first-class vibration characteristics.
Anti-side rolling torsion rod component devices are mounted on rail traffic vehicles, when rail vehicle is when sidewindering movement, torsion bar
Axis torsional deflection provides together with other components and to sidewinder rigidity needed for vehicle safety operation, meets dynamics of vehicle with this
The requirement of performance, it is ensured that the safe operation of vehicle.Mainly there are six the degree of freedom in direction for the vibration of vehicle：The flexible of the directions X shakes
Dynamic, the yaw vibration in the directions Y, the bouncing in the directions Z, the nodding around Y axis, the yawing around Z axis, around X axis
Rolling.Anti-side rolling torsion rod component devices primarily serve the effect that vehicle sidewinders rigidity, controls vehicle rolling that adjusts.
Torsion bar mechanism for preventing side rolling of train carriage includes mainly torsion bar, reverse arm, bearing block composition and vertical connecting rod composition.Such as Fig. 1 and Fig. 2
It is shown, torsion bar bear 2 is provided with by interference fit inside bearing block composition 1, is arranged on the torsion bar end face 311 of torsion bar 3
Have the diameter of axially extending torsion bar end 312 and torsion bar end 312 be less than torsion bar end face 311 at torsion bar 3 diameter, by
It is provided with spline 4 on the peripheral surface of torsion bar 3 at nearly torsion bar end face 311.When assembly, torsion bar end 312 is inserted into torsion bar bear 2
In connect with 2 clearance fit of torsion bar bear, pass through spline fitted set on the peripheral surface of the torsion bar 3 at torsion bar end face 311
It is connected to reverse arm 5.
At present when the torsion bar mechanism for preventing side rolling of train carriage to certain rail vehicles overhauls, it is found that torsion bar end has corrosion existing
As wherein many torsion bar mechanism for preventing side rolling of train carriage are more than inspection standard.Due to the high scrappage of torsion bar mechanism for preventing side rolling of train carriage, lead to the product
The cost of overhaul is high, and at present the torsion bar mechanism for preventing side rolling of train carriage on certain rail vehicles be carried out on the basis of external product it is domestic
Hair is melted, structure has largely continued to use external prototype structure, and improvement difficulty is larger, in addition in recent years on certain rail vehicles
Torsion bar mechanism for preventing side rolling of train carriage per about 100,000,000 yuan of annual value of production, production value is big, and especially product reaches turn(a)round successively, overhauls city
Field scale is also considerable, and therefore, the solution of the problem just seems particularly urgent and important.
It is as follows to retrieve Patents documents：
One, Authorization Notice No. CN2483280Y, authorized announcement date are that the Chinese utility model patent on March 27th, 2002 discloses
A kind of anti-side rolling torsion rod, including torsion bar, fulcrum bearing, torque arm, connecting rod, connecting rod base and oscillating bearing, in the shoulder and branch of torque arm
Seal member is provided between the end face of bearing, seal member is sealing shroud, and sealing shroud is made of rubber.
Two, Authorization Notice No. CN203111196U, authorized announcement date are the Chinese utility model on the 7th of August in 2013
Patent discloses a kind of novel track vehicle torsion bar mechanism for preventing side rolling of train carriage, includes mainly torsion bar shaft, reverse arm, vertical links, rubber
Glue oscillating bearing one, rubber arthrosis bearing two, metal joint bearing；Described reverse arm one end and torsion bar shaft are equidistantly more by envelope
The connection type of side shape positive is connected, and the reverse arm other end is connected with the rubber arthrosis bearing one, described
Rubber arthrosis bearing one is connect with car body；Described vertical links one end is connected with the metal joint bearing outside, the gold
Belong to oscillating bearing inner sleeve with the torsion bar shaft to be connected, the vertical links other end is connected with the rubber arthrosis bearing two
It connects, the rubber arthrosis bearing two is connected with bogie.
Three, Authorization Notice No. CN203162159U, authorized announcement date are the Chinese utility model on the 28th of August in 2013
Patent discloses a kind of novel double-layer sealing structure of Anti-side rolling torsion bar for railway vehicle, includes the support base group equipped with seal groove
Part, the reverse arm for being equipped with seal groove and the lip-type packing between the support holder assembly and reverse arm, the lip
Shape sealing ring includes main body and interior ﹑ outer lips, and the main body is fixed on by interference nesting in the seal groove of support holder assembly, described
Outer lip is fitted in reverse arm outer end face, and epipharynx is fitted in reverse arm seal groove.
Although being both provided with seal assembly in above patent document, it still will appear torsion bar end during use
The phenomenon that portion's corrosion.
To sum up, a kind of method and structure preventing the corrosion of torsion bar end how is designed, can prevent torsion bar end from making
With occurring corrosion phenomena in the process, the scrappage of torsion bar mechanism for preventing side rolling of train carriage is reduced, reduce the cost of overhaul and foreign technology can be got around
Restriction, autonomous grasp maintenance market be badly in need of solve the technical issues of.
Invention content
The technical problem to be solved by the present invention is in view of the deficiencies in the prior art, provide it is a kind of by seal come
The method and torsion bar end sealing structure for preventing galvanic corrosion can prevent torsion bar end from occurring corrosion in use existing
As, the scrappage of torsion bar mechanism for preventing side rolling of train carriage is reduced, the cost of overhaul is reduced and the restriction of foreign technology can be got around, the autonomous palm
Hold maintenance market.
In order to solve the above technical problems, the technical solution used in the present invention is：One kind prevents galvanic couple rotten by sealing
The method of erosion is the setting primary seal circle between the torsion bar end face and torsion bar bear end face of torsion bar；When assembling, first by primary seal
Snare is connected on the torsion bar end face of torsion bar, then torsion bar end is inserted into torsion bar bear, during insertion, utilizes torsion bar
Primary seal circle compression is fitted on the torsion bar end face of torsion bar by the end face of bearing so that formation one is close on torsion bar bear end face
The binding face of envelope prevents outer electrolyte from entering inside torsion bar bear, to prevent the generation of galvanic corrosion.
Preferably, primary seal circle includes hollow circular cone shape circle body, is arranged on the small cephalic par of circular cone shape circle body
Turn up the horizontal extension circle body for protruding circle body and being arranged on circular cone shape circle body major part end；
When torsion bar end is inserted into torsion bar bear, connected with the protrusion circle body that turns up of primary seal circle using the end face of torsion bar bear
Touch, during torsion bar end is inserted into, primary seal circle turn up protrude circle body stress and gradually compress backward, and always with torsion
The end face of rod bearing is bonded, and the protrusion circle body that turns up of primary seal circle is pressed on torsion bar end face by the final end face using torsion bar bear
Upper formation sealing, prevents outer electrolyte from entering inside torsion bar bear.
Preferably, torsion bar bear end face is arranged to chamfering shape；After torsion bar end is inserted into torsion bar bear, using close
The protrusion circle body that turns up of primary seal circle is pressed on torsion bar end face and forms one by the chamfering shape torsion bar bear endface of torsion bar end
Secondary sealing structure is compressed the horizontal extension circle body of primary seal circle using the chamfering shape torsion bar bear endface far from torsion bar end
Secondary seal structure is formed on torsion bar end face, to which External electrolytic can be prevented by once sealing structure and secondary seal structure
Matter enters inside torsion bar bear.
Preferably, a whole circle is smeared on the spline fitted end face being located remotely between the torsion bar and reverse arm of primary seal circle
Fluid sealant prevent External electrolytic so that the spline fitted gap between torsion bar and reverse arm be completely covered using fluid sealant
Matter enters inside torsion bar bear.
Preferably, the step of smearing fluid sealant is：A, glue bearing areas cleaning treatment；B, fluid sealant inspection；C, it is applying
Smear fluid sealant in glue region；D, the fluid sealant wiped will have been applied to flatten；E, fluid sealant is cured.
Preferably, horizontal extension circle body one end of the primary seal circle is exposed into torsion bar peripheral surface, after being completed,
So that the exposed one end of horizontal extension circle body is blocked in the spline between the torsion bar and reverse arm close to primary seal circle side
On counterface.
Preferably, it is provided with pair at the peripheral position between bearing block composition and reverse arm end face and positioned at primary seal circle
Sealing ring further prevents outside by forming auxiliary sealing structure between bearing block composition, secondary seal ring and reverse arm end face
Electrolyte enters inside torsion bar bear.
Invention additionally discloses a kind of torsion bar end sealing structures comprising is arranged in the torsion bar end face of torsion bar and torsion bar shaft
Primary seal circle is set between socket end face；Primary seal circle is compressed to the torsion bar end face for being fitted in torsion bar using the end face of torsion bar bear
On so that the binding face of a sealing is formed on torsion bar bear end face, and outer electrolyte is prevented to enter inside torsion bar bear,
To prevent the generation of galvanic corrosion.
Preferably, primary seal circle includes hollow circular cone shape circle body, is arranged on the small cephalic par of circular cone shape circle body
Turn up protrusion circle body and the horizontal extension circle body being arranged on circular cone shape circle body major part end, and torsion bar bear end face is arranged to
Chamfering shape；
After torsion bar end is inserted into torsion bar bear, using the chamfering shape torsion bar bear endface close to torsion bar end by primary seal
The protrusion circle body that turns up of circle is pressed on formation once sealing structure on torsion bar end face, utilizes the chamfering shape torsion bar far from torsion bar end
The protrusion circle body that turns up of primary seal circle is pressed on formation secondary seal structure on torsion bar end face at bearing face, to pass through one
Secondary sealing structure and secondary seal structure can prevent outer electrolyte from entering inside torsion bar bear.
Preferably, a whole circle is smeared on the spline fitted end face being located remotely between the torsion bar and reverse arm of primary seal circle
Fluid sealant.
The beneficial effects of the present invention are：It is found by a large amount of research and analysis, in torsion bar work system, due to not
The lotus root of same material connects and results in torsion bar end, copper-graphite bearing generates galvanic corrosion, and the stream of wind is driven when train high-speed cruising
More water and airs can also be squeezed into torsion bar end regions by body pressure, and therefore, torsion bar, copper-graphite bearing can touch
Aqueous solution and oxygen, this will provide condition for corrosion.The present invention passes through in the torsion bar end face of torsion bar and torsion bar shaft socket end
Primary seal circle is set between face, the electrolyte such as the water and air outside in train high-speed cruising can effectively be prevented to be squeezed into
To inside torsion bar bear, so as to prevent the generation of galvanic corrosion, the scrappage of torsion bar mechanism for preventing side rolling of train carriage is reduced, reduces inspection
Accomplish this and the restriction of foreign technology can be got around, market is overhauled in autonomous grasp.Utilize the chamfering shape torsion bar close to torsion bar end
The protrusion circle body that turns up of primary seal circle is pressed on formation once sealing structure on torsion bar end face at bearing face, using far from torsion
The chamfering shape torsion bar bear endface of boom end the horizontal extension circle body of primary seal circle is pressed on torsion bar end face formed it is secondary
Sealing structure, to further outer electrolyte be prevented to enter torsion bar shaft by once sealing structure and secondary seal structure
Hold inside.Demonstrating sealing performance failure at the spline fitted between torsion bar and reverse arm by a large amount of research and analysis is also
One of the reason of causing galvanic corrosion, therefore, the present invention cover the spline fitted between torsion bar and reverse arm using fluid sealant
Gap, by gap stops in spline at tooth top and at tooth root, so as to further outer electrolyte be prevented to enter torsion bar shaft
It holds in inside.Using the exposed one end of horizontal extension circle body block positioned at torsion bar and the reverse arm close to primary seal circle side it
Between spline fitted end face on, can further stop that outer electrolyte enters inside torsion bar bear in this way, avoid galvanic corrosion
Generation.
Description of the drawings
Fig. 1 is the axial sectional structure signal in part for being located at side torsion bar end in existing torsion bar mechanism for preventing side rolling of train carriage
Figure；
Fig. 2 is the axial schematic cross-sectional view in part of the torsion bar end of existing torsion bar；
Fig. 3 is detection material（Graphite）Open circuit potential versus time curve figure；
Fig. 4 is detection material（Copper alloy inlaid graphite and copper alloy）Open circuit potential versus time curve figure；
Fig. 5 is detection material（Steel）Open circuit potential versus time curve figure；
Fig. 6 is the immersion corrosion experiment corrosion rate detected value table that steel connects sample with dissimilar material lotus root；
Fig. 7 illustrates for the axial sectional structure in part for being located at torsion bar end in the torsion bar mechanism for preventing side rolling of train carriage of the embodiment of the present invention 1
Figure；
Fig. 8 is the enlarged structure schematic diagram in the portions E in Fig. 7；
Fig. 9 is the axial schematic cross-sectional view of primary seal circle in the embodiment of the present invention 1；
Figure 10 is the enlarged structure schematic diagram in the portions F in Fig. 9；
Figure 11 is cylinder involute spline part fit structure schematic diagram；
Figure 12 is the part axial direction sectional structure positioned at side torsion bar end in the torsion bar mechanism for preventing side rolling of train carriage of the embodiment of the present invention 2
Schematic diagram；
Figure 13 is the enlarged structure schematic diagram in the portions I in Figure 12；
In figure：1. bearing block forms, 2. torsion bar bears, 211. torsion bar bear end faces, 3. torsion bars, 311. torsion bar end faces,
312. torsion bar ends, 4. splines, 5. reverse arms, 6. primary seal circles, 611. circular cone shape circle bodies, 612. turn up protrusion ring
Body, 613. horizontal extension circle bodies, 7. secondary seal rings, 8. fluid sealants.
Specific implementation mode
Further details of elaboration is done to technical scheme of the present invention in the following with reference to the drawings and specific embodiments.
Applicant has found that torsion bar bear uses the embedding graphite cannula of copper, torsion bar and copper-graphite bearing by numerous studies and analysis
Between have relative position mobile and reduction.Therebetween play lubricating action is on lithium base grease and grinding copper-graphite bearing
Graphite powder.Air and water can be entered between the two by the gap between inside and outside spline, and when train high-speed cruising drives the fluid of wind
More water and airs can also be squeezed into torsion bar end regions by pressure, and therefore, torsion bar, copper-graphite bearing can touch water
Solution and oxygen, this will provide condition for corrosion.Corrosion of any type metal in aqueous medium is all electrification
Corrosion is learned, therefore, water and oxygen are more, and torsion bar, copper-graphite bearing corrode more serious.Even if dissimilar material does not connect
It touches, corrosion also can be by the intrinsic corrosion rate occurrence and development of each material.
Many metals itself are corrosion resistant, their heavy corrosions will not be caused by only having air and water in environment, such as copper and
Copper alloy, aluminum and zinc etc..But the factor for actually having many acceleration metal erosion causes metal local corrosion rate to increase.
The effect of galvanic couple is one of them.If two kinds of material lotus roots that current potential has differences are connected together, the low material of current potential in solution
As anode, corrosion can accelerate, and the high material of current potential is protected as cathode or only makees the carrier of cathode reactant.Two kinds
The potential difference of material is to corrode one of the key factor of acceleration size.
Torsion bar is made of steel material, for the working environment of torsion bar end, can form steel-graphite（Graphite column and stone
Ink powder）, steel-copper alloy, steel-copper alloy inlaid graphite, copper alloy-graphite（Graphite column and graphite powder）Temporary or the stage lotus root
It connects.According to torsion bar end, graphite, copper-graphite bearing Cu alloy material in 0.1N NaCl+0.1N NaHSO3Simulated atmosphere is rotten
Lose open circuit potential in solution（See that Fig. 3 to Fig. 5, wherein A represent graphite, B represents copper alloy inlaid graphite, and C represents copper alloy, D generations
Table steel）And the corrosion rate of the Galvanic Current and steel between them when composition galvanic couple（See Fig. 6）Testing result, between steel and graphite
Potential difference and Galvanic Current is maximum, the corrosion rate of steel is also big, this is that more serious local overlooking occurs for torsion bar end
Main cause.In conclusion in torsion bar work system, torsion bar end, copper-graphite are resulted in since the not lotus root of same material connects
The corrosion that bearing generates galvanic corrosion and causes them different degrees of accelerates.Torsion bar end is that its generation is more serious with graphite contact
Local corrosion the main reason for.Copper-graphite bearing copper alloy also has certain effect to the accelerated corrosion of torsion bar end.Application
People thinks, for current torsion bar and matched system, is considered as effectively completely cutting off water and air and enters inside torsion bar bear
To prevent the generation of galvanic corrosion.
Embodiment 1：As shown in Figure 7 and Figure 8, a method of preventing galvanic corrosion by sealing, be in torsion bar
Primary seal circle 6 is set between torsion bar end face 311 and torsion bar bear end face 211；When torsion bar mechanism for preventing side rolling of train carriage assembles, first by primary seal
Circle 6 is socketed on the torsion bar end face 311 of torsion bar, then torsion bar end 312 is inserted into torsion bar bear 2, during insertion,
The compression of primary seal circle 6 is fitted on the torsion bar end face 311 of torsion bar using the end face of torsion bar bear 2 so that in torsion bar shaft socket end
The binding face that a sealing is formed on face 211, prevents outer electrolyte from entering inside torsion bar bear 2, to prevent galvanic couple rotten
The generation of erosion.The present embodiment, can be effective by the way that primary seal circle is arranged between the torsion bar end face and torsion bar bear end face of torsion bar
The electrolyte such as the water and air outside in train high-speed cruising are prevented to be pressed into inside torsion bar bear, so as to prevent electricity
The generation of thermogalvanic corrision reduces the scrappage of torsion bar mechanism for preventing side rolling of train carriage, reduces the cost of overhaul and can get around the system of foreign technology
About, market is overhauled in autonomous grasp.
As shown in Fig. 8, Fig. 9 and Figure 10, primary seal circle 6 includes hollow circular cone shape circle body 611, is arranged in circular cone shape
The horizontal extension protruded circle body 612 and be arranged on 611 major part end of circular cone shape circle body of turning up on 611 small cephalic par of circle body
Circle body 613；It is convex using torsion bar bear end face 211 and turning up for primary seal circle when torsion bar end 312 is inserted into torsion bar bear 2
Go out circle body 612 to be in contact, during torsion bar end 312 is inserted into, primary seal circle turn up protrusion 612 stress of circle body and it is gradual
It compresses, and is bonded always with torsion bar bear end face 211 backward, finally utilize the turning up primary seal circle of torsion bar bear end face 211
Protrusion circle body 612, which is pressed on torsion bar end face 311, forms sealing, and outer electrolyte is prevented to enter inside torsion bar bear.
As shown in figure 8, it is further, torsion bar bear end face 211 will can be arranged to chamfering shape；When torsion bar end 312 is inserted
Enter to after torsion bar bear 2, using at the chamfering shape torsion bar bear end face 211 of torsion bar end by the protrusion that turns up of primary seal circle
Circle body 612 is pressed on formation once sealing structure on torsion bar end face 311, utilizes the chamfering shape torsion bar shaft socket end far from torsion bar end
The horizontal extension circle body 613 of primary seal circle is pressed on formation secondary seal structure on torsion bar end face 311 at face 211, to logical
Crossing once sealing structure and secondary seal structure further can prevent outer electrolyte from entering inside torsion bar bear.
As shown in Figure 10, the thickness of the circular cone shape circle body 611 is to arrive horizontal extension circle along the protrusion circle body 612 that turns up
What the direction of body 613 gradually increased.In this way, can be so that the sealing performance at primary seal circle be better after being completed.
The protrusion circle body 612 that turns up is set as spherical shape, so that the protrusion circle body that turns up after assembling is in torsion bar bear
It is bonded even closer between end face and torsion bar end face.
It is set at the peripheral position between 1 and 5 end face of reverse arm and positioned at primary seal circle 6 as shown in figure 8, being formed in bearing block
It is equipped with secondary seal ring 7, by forming auxiliary sealing structure into one between bearing block composition 1,5 end face of secondary seal ring 7 and reverse arm
Step prevents outer electrolyte from entering inside torsion bar bear.In the present embodiment, nitrile rubber, secondary sealing can be used in primary seal circle
Polyurethane material can be used in circle.
As shown in Figure 7 and Figure 8, a kind of torsion bar end sealing structure is also disclosed in the present embodiment comprising is arranged in torsion bar
Torsion bar end face 311 and torsion bar bear end face 211 between setting primary seal circle 6；Using torsion bar bear end face 211 by primary seal circle
6 compressions are fitted on the torsion bar end face 311 of torsion bar so that the binding face of a sealing, resistance are formed on torsion bar bear end face 211
Only outer electrolyte enters inside torsion bar bear 2, to prevent the generation of galvanic corrosion.
Embodiment 2：Flower of the applicant by various experiments and spline analysis on sealing between torsion bar and reverse arm
Sealing performance failure likelihood makes further research at key cooperation.
Without pressure water leaching experiment：A set of new anti-side rolling torsion rod product is randomly selected, in one side region of spline fitted, along flower
Keyway is sprayed water（Flow about 2-3L/min）, visible other side region has apparent water to ooze out after 2-3 seconds, can obtain product spline
Left and right both ends are the conclusions of blow-by.
Pressure water spray is tested：Two sets of new anti-side rolling torsion rod products are randomly selected, using bubble bags protection torsion bar end
It sprays water along spline in one side region of spline fitted in region（Flow about 8-10L/min）, dismantle bubble bags and find two sets of productions
There is water mark in product splined area.
Product Dissection test：
Choose the anti-side rolling torsion rod product of a set of maintenance, wherein one end reverse arm is opened in milling, spline fitted region have apparent dust stratification and
Greasy dirt, trial division dust stratification and greasy dirt rear surface situation are preferable.Brown material between the inside and outside spline of service products carries out ingredient mirror
Fixed, analysis result, which is shown mainly, to be had：Grease type, ferro element, copper.Illustrate product after running a period of time, copper sheathing bearing
There is a little abrasion, the butter for being mingled with copper has and penetrates between inside and outside spline.
The connection analysis of torsion bar spline：
Such as Figure 11（Select from GB/T 3478《Cylindrical straight gear involute spline》）Shown, involute spline for heavy duty when coupling
Usually tooth side centering（Reference circle is felt relieved）, flank contact transmission load, tooth top and tooth root can be clearance fits, to torsion bar
The major diameter and path of inside and outside spline carry out comparing calculation, and there are about 0.6mm in the gaps H at G and tooth root at tooth top.
By above-mentioned experiment and analysis, applicant thinks that sealing performance fails at the spline fitted between torsion bar and reverse arm
And one of the reason of causing galvanic corrosion.
Therefore, applicant is further improved：As shown in figure 12, compared with Example 1, difference exists the present embodiment
In：The close of a whole circle is smeared on 4 counterface of spline being located remotely between the torsion bar 3 and reverse arm 5 of 6 side of primary seal circle
Sealing 8 prevents External electrolytic to coordinate gap to be completely covered the spline 4 between torsion bar 3 and reverse arm 5 using fluid sealant 8
Matter enters inside torsion bar bear.The present embodiment can cover the spline fitted between torsion bar 3 and reverse arm 5 using fluid sealant
Gap, by the gaps H stop at G and tooth root at tooth top in spline, so as to further outer electrolyte be prevented to enter torsion bar
In Bearing inner.
The step of smearing fluid sealant is：
A, glue bearing areas cleaning treatment：Check that torsion bar component glue bearing areas, the foreign matters such as cleaning dust, greasy dirt, paint particle pay attention to
Damage is avoided to paint；
B, fluid sealant inspection：Check fluid sealant color etc.；
C, fluid sealant is smeared in glue bearing areas：Jiao Zui is withstood into rectangular area, manually at the uniform velocity slowly gluing, while at the uniform velocity rotation is turned round
Bar assembly ensures that glue amount is enough and relatively uniform after application；
D, the fluid sealant wiped will have been applied to flatten：Glue bearing areas is withstood with finger, leveling glue bearing areas, then using speckling with
The finger of suds flattens glue-line, and all covering adhesive and component are circumferentially smeared uniformly in guarantee straight-tooth region, glue-line no sag,
Phenomena such as missing, shrinkage cavity, and clear up residual seal glue；
E, fluid sealant is cured：The good torsion bar component of gluing is stood into solidification 24 hours or more and carries out primary solidification, subsequently
It reuses heating equipment and carries out subsequent cure.
Through the above steps, the sealing performance of fluid sealant can be further ensured that.
As shown in figure 13,613 one end of horizontal extension circle body of the primary seal circle 6 is exposed into 3 peripheral surface of torsion bar, works as group
After the completion of dress so that the exposed one end of horizontal extension circle body 613 block positioned at close to 6 side of primary seal circle torsion bar 3 with turn round
On 4 counterface of spline between pivoted arm 5.It can further stop that outer electrolyte enters inside torsion bar bear in this way, avoid
The generation of galvanic corrosion.
To sum up, it is found by a large amount of research and analysis, in torsion bar work system, is led since the not lotus root of same material connects
It has caused torsion bar end, copper-graphite bearing to generate galvanic corrosion, has driven when train high-speed cruising the Fluid pressure of wind also can will be more
Water and air squeeze into torsion bar end regions, therefore, torsion bar, copper-graphite bearing can touch aqueous solution and oxygen, this will
Condition is provided for corrosion.The present invention between the torsion bar end face and torsion bar bear end face of torsion bar by being arranged primary seal
Circle, can effectively prevent the electrolyte such as the water and air outside in train high-speed cruising to be pressed into inside torsion bar bear,
So as to prevent the generation of galvanic corrosion, the scrappage of torsion bar mechanism for preventing side rolling of train carriage is reduced, the cost of overhaul is reduced and can get around
Market is overhauled in the restriction of foreign technology, autonomous grasp.It will be led using the chamfering shape torsion bar bear endface close to torsion bar end
The protrusion circle body that turns up of sealing ring is pressed on formation once sealing structure on torsion bar end face, utilizes the chamfering shape far from torsion bar end
The horizontal extension circle body of primary seal circle is pressed on formation secondary seal structure on torsion bar end face by torsion bar bear endface, to logical
Crossing once sealing structure and secondary seal structure further can prevent outer electrolyte from entering inside torsion bar bear.By a large amount of
Research and analysis to demonstrate at the spline fitted between torsion bar and reverse arm sealing performance failure be also to cause galvanic corrosion
One of reason, therefore, the present invention cover the spline fitted gap between torsion bar and reverse arm using fluid sealant, by tooth in spline
Gap stops at top and at tooth root, so as to further prevent outer electrolyte from entering in torsion bar bear inside.Utilize water
It blocks at the spline fitted end between the torsion bar and reverse arm close to primary seal circle side one end that flat pull ring reveals in vitro
On face, it can further stop that outer electrolyte enters inside torsion bar bear in this way, avoid the generation of galvanic corrosion.
" multiple " described in the present embodiment refer to the quantity of " two or more ".Above example is only for illustrating this
Invention is used rather than limitation of the present invention, and person skilled in the relevant technique is not departing from the spirit and scope of the present invention
In the case of, it can also make a variety of changes or convert, therefore all equivalent technical solutions should also belong to the guarantor of the present invention
Range is protected, protection scope of the present invention should be limited by each claim.
Claims (10)
1. a kind of method by sealing to prevent galvanic corrosion, it is characterised in that：It is in the torsion bar end face of torsion bar and torsion bar
Primary seal circle is set between bearing face；When assembling, first primary seal snare is connected on the torsion bar end face of torsion bar, then by torsion bar end
Portion is inserted into torsion bar bear, and during insertion, primary seal circle compression is fitted in torsion bar using the end face of torsion bar bear
Torsion bar end face on so that on torsion bar bear end face formed one sealing binding face, prevent outer electrolyte enter torsion
Inside rod bearing, to prevent the generation of galvanic corrosion.
2. the method according to claim 1 by sealing to prevent galvanic corrosion, it is characterised in that：Primary seal circle includes
Hollow circular cone shape circle body, turning up of being arranged on the small cephalic par of circular cone shape circle body and are arranged in circular cone shape protrusion circle body
Horizontal extension circle body on circle body major part end；
When torsion bar end is inserted into torsion bar bear, connected with the protrusion circle body that turns up of primary seal circle using the end face of torsion bar bear
Touch, during torsion bar end is inserted into, primary seal circle turn up protrude circle body stress and gradually compress backward, and always with torsion
The end face of rod bearing is bonded, and the protrusion circle body that turns up of primary seal circle is pressed on torsion bar end face by the final end face using torsion bar bear
Upper formation sealing, prevents outer electrolyte from entering inside torsion bar bear.
3. the method according to claim 1 by sealing to prevent galvanic corrosion, it is characterised in that：By torsion bar shaft socket end
Face is arranged to chamfering shape；After torsion bar end is inserted into torsion bar bear, the chamfering shape torsion bar shaft socket end close to torsion bar end is utilized
The protrusion circle body that turns up of primary seal circle is pressed on formation once sealing structure on torsion bar end face at face, using far from torsion bar end
Chamfering shape torsion bar bear endface the horizontal extension circle body of primary seal circle is pressed on torsion bar end face formation secondary seal knot
Structure, to outer electrolyte be prevented to enter inside torsion bar bear by once sealing structure and secondary seal structure.
4. the method according to claim 1,2 or 3 by sealing to prevent galvanic corrosion, it is characterised in that：Positioned at
The fluid sealant that a whole circle is smeared on spline fitted end face between torsion bar and reverse arm far from primary seal circle, to utilize sealing
Spline fitted gap between torsion bar and reverse arm is completely covered glue, and outer electrolyte is prevented to enter inside torsion bar bear.
5. the method according to claim 4 by sealing to prevent galvanic corrosion, it is characterised in that：The smearing sealing
The step of glue is：A, glue bearing areas cleaning treatment；B, fluid sealant inspection；C, fluid sealant is smeared in glue bearing areas；D, it will smear
Good fluid sealant leveling；E, fluid sealant is cured.
6. the method according to claim 4 by sealing to prevent galvanic corrosion, it is characterised in that：By the primary seal
Horizontal extension circle body one end of circle exposes to torsion bar peripheral surface, after being completed so that the exposed one end of horizontal extension circle body
It blocks on the spline fitted end face between the torsion bar and reverse arm close to primary seal circle side.
7. the method according to claim 6 by sealing to prevent galvanic corrosion, it is characterised in that：It is formed in bearing block
It is provided with secondary seal ring between reverse arm end face and at the peripheral position of primary seal circle, it is close by bearing block composition, pair
Auxiliary sealing structure is formed between seal and reverse arm end face further prevents outer electrolyte from entering inside torsion bar bear.
8. a kind of torsion bar end sealing structure, it is characterised in that：Including being arranged in the torsion bar end face of torsion bar and torsion bar shaft socket end
Primary seal circle is set between face；Primary seal circle compression is fitted on the torsion bar end face of torsion bar using the end face of torsion bar bear, is made
The binding face for forming a sealing on torsion bar bear end face is obtained, outer electrolyte is prevented to enter inside torsion bar bear, to
Prevent the generation of galvanic corrosion.
9. torsion bar end according to claim 8 sealing structure, it is characterised in that：Primary seal circle includes hollow circular cone
Mesa-shaped circle body, be arranged on the small cephalic par of circular cone shape circle body turn up protrusion circle body and be arranged in circular cone shape circle body stub end
Torsion bar bear end face is arranged to chamfering shape by the horizontal extension circle body in portion；
After torsion bar end is inserted into torsion bar bear, using the chamfering shape torsion bar bear endface close to torsion bar end by primary seal
The protrusion circle body that turns up of circle is pressed on formation once sealing structure on torsion bar end face, utilizes the chamfering shape torsion bar far from torsion bar end
The protrusion circle body that turns up of primary seal circle is pressed on formation secondary seal structure on torsion bar end face at bearing face, to pass through one
Secondary sealing structure and secondary seal structure can prevent outer electrolyte from entering inside torsion bar bear.
10. torsion bar end sealing structure according to claim 8 or claim 9, it is characterised in that：It is being located remotely from primary seal circle
Torsion bar and reverse arm between spline fitted end face on smear a whole circle fluid sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799674.0A CN108561556B (en) | 2018-07-20 | 2018-07-20 | Method for preventing galvanic corrosion by sealing and sealing structure at end of torsion bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799674.0A CN108561556B (en) | 2018-07-20 | 2018-07-20 | Method for preventing galvanic corrosion by sealing and sealing structure at end of torsion bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561556A true CN108561556A (en) | 2018-09-21 |
| CN108561556B CN108561556B (en) | 2024-05-07 |
Family
ID=63555803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810799674.0A Active CN108561556B (en) | 2018-07-20 | 2018-07-20 | Method for preventing galvanic corrosion by sealing and sealing structure at end of torsion bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561556B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936972A (en) * | 2019-11-19 | 2020-03-31 | 株洲时代新材料科技股份有限公司 | Anti-axial-movement method for anti-side-rolling torsion bar assembly and anti-side-rolling torsion bar assembly |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483280Y (en) * | 2001-02-26 | 2002-03-27 | 沈宏峻 | Rod for anti side rolling |
| CN2539023Y (en) * | 2002-05-15 | 2003-03-05 | 中国石油化工股份有限公司 | Motive seal |
| CN2539022Y (en) * | 2002-01-01 | 2003-03-05 | 车恒德 | J-shaped sliding ring combined seal |
| CN2814035Y (en) * | 2005-06-30 | 2006-09-06 | 宝山钢铁股份有限公司 | Self-balance rotary sealing device |
| CN2844554Y (en) * | 2005-11-08 | 2006-12-06 | 慈兴集团有限公司 | Sealing ring of bearing |
| CN1985114A (en) * | 2004-07-16 | 2007-06-20 | Nok株式会社 | Sealing device |
| CN101240817A (en) * | 2008-02-29 | 2008-08-13 | 胡先根 | Bearing sealed ring possessing axial clearance compensation function |
| CN201134385Y (en) * | 2007-12-19 | 2008-10-15 | 云南开关厂 | Shaft block of outdoor high-voltage isolating switch |
| US20100108430A1 (en) * | 2008-11-04 | 2010-05-06 | Kayaba Industry Co., Ltd. | Power steering device |
| CN201774349U (en) * | 2010-08-03 | 2011-03-23 | 中山大洋电机制造有限公司 | Sealing structure for motor of dish washing machine |
| CN201914270U (en) * | 2010-12-24 | 2011-08-03 | 南车南京浦镇车辆有限公司 | Rubber sleeve of half-and-half type torsion bar |
| CN202001514U (en) * | 2011-01-04 | 2011-10-05 | 安徽泰尔重工股份有限公司 | Novel sealing structure for spline joint of coupler |
| CN203162159U (en) * | 2013-04-08 | 2013-08-28 | 株洲时代新材料科技股份有限公司 | Novel double-sealed structure of side-rolling-resistant torsion bar for railway vehicle |
| CN204985721U (en) * | 2015-07-31 | 2016-01-20 | 福建恒杰塑业新材料有限公司 | Sealing washer on plastics tubular product production line |
| CN206130123U (en) * | 2016-08-11 | 2017-04-26 | 胡和锁 | By -pass valve |
| CN208457199U (en) * | 2018-07-20 | 2019-02-01 | 株洲时代新材料科技股份有限公司 | A kind of torsion bar end sealing structure that can prevent galvanic corrosion |
-
2018
- 2018-07-20 CN CN201810799674.0A patent/CN108561556B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483280Y (en) * | 2001-02-26 | 2002-03-27 | 沈宏峻 | Rod for anti side rolling |
| CN2539022Y (en) * | 2002-01-01 | 2003-03-05 | 车恒德 | J-shaped sliding ring combined seal |
| CN2539023Y (en) * | 2002-05-15 | 2003-03-05 | 中国石油化工股份有限公司 | Motive seal |
| CN1985114A (en) * | 2004-07-16 | 2007-06-20 | Nok株式会社 | Sealing device |
| CN2814035Y (en) * | 2005-06-30 | 2006-09-06 | 宝山钢铁股份有限公司 | Self-balance rotary sealing device |
| CN2844554Y (en) * | 2005-11-08 | 2006-12-06 | 慈兴集团有限公司 | Sealing ring of bearing |
| CN201134385Y (en) * | 2007-12-19 | 2008-10-15 | 云南开关厂 | Shaft block of outdoor high-voltage isolating switch |
| CN101240817A (en) * | 2008-02-29 | 2008-08-13 | 胡先根 | Bearing sealed ring possessing axial clearance compensation function |
| US20100108430A1 (en) * | 2008-11-04 | 2010-05-06 | Kayaba Industry Co., Ltd. | Power steering device |
| CN201774349U (en) * | 2010-08-03 | 2011-03-23 | 中山大洋电机制造有限公司 | Sealing structure for motor of dish washing machine |
| CN201914270U (en) * | 2010-12-24 | 2011-08-03 | 南车南京浦镇车辆有限公司 | Rubber sleeve of half-and-half type torsion bar |
| CN202001514U (en) * | 2011-01-04 | 2011-10-05 | 安徽泰尔重工股份有限公司 | Novel sealing structure for spline joint of coupler |
| CN203162159U (en) * | 2013-04-08 | 2013-08-28 | 株洲时代新材料科技股份有限公司 | Novel double-sealed structure of side-rolling-resistant torsion bar for railway vehicle |
| CN204985721U (en) * | 2015-07-31 | 2016-01-20 | 福建恒杰塑业新材料有限公司 | Sealing washer on plastics tubular product production line |
| CN206130123U (en) * | 2016-08-11 | 2017-04-26 | 胡和锁 | By -pass valve |
| CN208457199U (en) * | 2018-07-20 | 2019-02-01 | 株洲时代新材料科技股份有限公司 | A kind of torsion bar end sealing structure that can prevent galvanic corrosion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936972A (en) * | 2019-11-19 | 2020-03-31 | 株洲时代新材料科技股份有限公司 | Anti-axial-movement method for anti-side-rolling torsion bar assembly and anti-side-rolling torsion bar assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108561556B (en) | 2024-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108909749A (en) | A kind of anti-side rolling torsion rod end construction preventing galvanic corrosion | |
| CN208457199U (en) | A kind of torsion bar end sealing structure that can prevent galvanic corrosion | |
| CN104015742B (en) | The motor-car of a kind of 100% low-floor tramcar and assemble method thereof | |
| CN108561556A (en) | The method and torsion bar end sealing structure for preventing galvanic corrosion by sealing | |
| CN202199453U (en) | Permanent magnet turbine brake speed limiting and contactless gap seal high-pressure water rotating sprayer | |
| CN108909750A (en) | A method of prevent anti-side rolling torsion rod end from galvanic corrosion occurs | |
| CN201249779Y (en) | Rubber hinged knuckle device | |
| CN105695147A (en) | Environmentally friendly automobile glass cleaner | |
| CN201627926U (en) | Heavy truck bridge hub oil seal | |
| CN104209257B (en) | Electric locomotive anticorrosive coating method | |
| CN108581363A (en) | A kind of Vertical Mill wheel hub restorative procedure | |
| CN201520940U (en) | Composite coating bridge extension joint structure | |
| CN202172323U (en) | Sealing structure of vertical motor | |
| CN202402638U (en) | Protective sleeve of elastic polymer dust-proof plate seat used for axle | |
| CN207111803U (en) | A kind of motor car bogie motor node | |
| CN208842617U (en) | A kind of improved helicopter tail wheel | |
| CN207213167U (en) | A kind of piston rod sealing ring | |
| CN112122084A (en) | Protection method of bolt for bridge and anti-corrosion bolt assembly | |
| CN206030957U (en) | Electric automobile semi -axis | |
| CN206667033U (en) | Bridge bolts the safeguard structure of system | |
| CN213270116U (en) | Corrosion-resistant impeller for hydroelectric power generation | |
| CN212290024U (en) | Automobile steering knuckle assembly | |
| CN206785385U (en) | A kind of novel thermoplastic polyurethane powder coating cage guide or buntons | |
| CN105970200A (en) | Train door protection layer and production method thereof | |
| CN104097616A (en) | 24-V electric mini-type scrubbing mechanical arm for saloon car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |